Apparatus for forging in dies.



No. 875,443. PATENTED DEC. 31, 1907.

E. LELONG.

APPARATUS FOR FORGING IN ms.

PL AP IOATIOIT FILED JULY1'7,1905 2 SHEET 1- THE NDRRIS PETERS cow,wnsumsrcu, o, c.

No.8v5,44s. A PATENTED DEG.31,190'7.

E.LBLONG. I

APPARATUS FOR FOEGING IN DIES.

' APPLIOATION FILED JULY 17, 1905.

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UNITED sTATEs PATENT oEEroE.

EMILE LELONG, OF GONILLET, BELGIUM.

APPARATUS FOR FORGZING- IN DIES.

T 0 all whom it may concern:

Be it known that I, EMILE LELONG, engineer, at Coni-llet, Belgium, haveinvented Improved Apparatus for Forging in Dies and the Like, of whichthe following is a specification.

The object of this invention is to provide an improved apparatus bywhich the fins formed in the process of forging in dies and the like maybe readily removed and disposed of.

In the accompanying drawings :Figure 1 is a cross section of a hammerand anvil in which my invention is incorporated; Fig. 2 is a plan viewof the same; Fig. 3 is a partial half cross section of the apparatusadapted to another form of die; Fig. 4 is a partial half,

cross section of the apparatus in another form; Fig. 5 is a plan view ofthe same; Fig. 6 is a plan view and side elevation of an integral ringand rod; Fig. 7 is a plan of another modification of my invention; Fig.8 is a cross section of the same; Figs. 9 and 10 are furthermodifications of the apparatus shown in Fig. 8.

In order that the invention may be readily understood, I will consider aring of any size having either a circular cross section as shown at 1 inFig. 1, or a square cross section as shown at 3 in Fig. 3.

I will first of all presume that it is desired to forge in dies the linkor ring 1 of circular cross section and to remove while the forgingoperation is proceeding the fins that may form inside the ring or link.With this obj ect in view, I insert in the anvil 4 (Fig. 1) a die 5having the dimensions required to resist the stresses to which it willbe subjected. Likewise the hammer head 6 provided with a recess 7engaging with the hammer rod of the steam hammer or forging machine,carries a block or die 8, the lowerpart of which has the shape ofcircular punch and enters the said ring die 5 as shown in the drawing,

thereby acting like the punch of a punching machine at and below thehorizontal plane of symmetry of the ring.

It is known that in order to secure a proper register of the dies duringthe forging of the article, the proper contact of the hammer with theanvil is insured by tenons 9 arranged either on the hammer head or onthe anvil face.

If instead of a ring of circular cross section, a shrinkage hoop or ringof square cross section has to be forged in dies and the inner finSpecification of Letters Patent. Application filed July 17, 1905. SerialNo. 269,884-

Patented Dec. 31, 1907.

removed at the same time, an apparatus of a similar construction shownin Fig. 3, is used. This arrangement consists of a cutting ring 11located in the anvil 10, and of another ring 13 in the hammer head 12,this ring 13 forming with the ring 11 a circular punch. It will benoticed that when a square cross section is dealt with, the cutting rmglocated in the anvil forms the bottom of the die and that the outer finsare avoided by suitable proportions of the length of cutting portion ofthe ring 13 and of the part of the hammer helad 12 that enters therecess formed in anvi 10.

If in the case of a circular cross section, it is wished to remove notonly the inner fin but also the outer fin, a ring 14 having a doublecutting edge is adapted as shown in Figs. 4 and 5, to the hammerhead 15while a ring 16 likewise provided with a double cutting edge is arrangedin the anvil 17.

It should be observed that in all cases (Figs. 1, 3, 4 and 5), the rings5 and 1116 as well as the anvils 4 and 10-17 are provided with centralholes 1819 for removing the detached fins from the machine. In thearrangement shown in Figs. 4 and 5, however,

there are left on the outer peripheryof the ring 16 and in the anvil 17a number of passages 20 with upper funnel-shaped ends 21- facilitatingthe removal of the fins detached frolm the outer periphery of the forgedartic e.

If it be, for example, desired to forge a head or a ring integral with arod or other body as shown in Fig. 6, or a ring engaging another, thecutting rings are interrupted at the required places and correspondingre-. oesses, provided as usual in the anvil and hammer.

In the arrangements illustrated in Figs. 1 to 5, it will be noticed thatthe removal of the fins is effected simultaneously in the whole of theperiphery of the die-forged object, but it may be necessary to effectthe removal of the fin only successively on certain parts by the use oftwo or more punches integral with the die or the operating part of theanvil, or of the hammer. For this purpose, I arrange in the anvil 23 andhammer 22 dies 24 and 25, Fig. 8, but instead of giving to the lower artof the die 24 the shape of a circular punc I provide on this lower parttwo or more punches 2627 which are capable of entering recesses ofsuitable shape 28 and 29 formed in the die 25, these recesses being soarranged as to facilitate the removal of the detached fins from theforging device through a passage 30.

The punches 26 and 2-7 may, as shown at 31 Fig. 9, have their lower faceparallel to the face operated on, or as a modification this lower facemay be inclined thereto as shown at 32 Fig. 10, if it be supposed thatthe ring be shifted in any manner on the anvil in the direction of thearrow 33.

I claim as my invention I Means for forging rings in dies, comprising adie adapted to be located on the anvil of a forging device and havingthe shape required 15 for forging the ring, in combination with a l dieadapted to be fixed on the hammer of the forging device and having theshape for forging the ring, and provided with a part entering recessesof corresponding shape in the anvil die, to remove the inner fins duringthe forging operation and a central passage to carry off the detachedfins.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

EMILE LELONG.

Witnesses 2 GUsTAVE PIERRY, EMILE NUYTs.

